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ALFRED BAUM-GARTEN, OF NEW YORK, .N. Y., ASSIGNOR' TO HIM- ASELF AND CHARLES W.

WALTER, OF SAME PLACE.

Letters Patent No. 93,270, dated August 3, 1869;v ntedcted August 2, 1869.

IMPROVEMENT IN RECEIVERS 0R CARBOYS FOR THE MANUFACTURE OF MURIATIC .AND4 OTHER ACIDS.

The Schedule referred to in these Letters Patent and making pmt of the same.

To all whom it may concern: y i

Be it known that I, ALFRED BAUMGABTEN, of the city and State of New York, have invented and made' reference being had to the annexed drawing, making part of this specification, wherein- Figure lis aver-tical section of two of said receivers, and

Figure 2 is a plan, showing one of said receivers sectionally.

The same parts are designated by like letters in both iigures.

In the manufacture of acids it is usual to employ cylinders or retort-s, in which the acids or fumes are generated, and from these glazed stone-ware tubes pass to the receivers or carboys for condensing the acid.

These carboys are usually made of glazed stone-ware, and the tubes of the same are inserted int-o necks, aud rendered tight by a luting of cement, clay, or putty.

These receivers or carboys have to 'be emptied or partially emptied periodically, and it has been usual to remove a stopper on small neck at the top of eachreceiver, and thereby obtain access for removing the acid by a Siphon. In doing this the acid is frequentlyl rendered impure by the pieces of the clay or cement falling into it; and besides this, much time islost iu dccanting byla siphonV from each of the receivers, and again closing the stoppers, and the acid product v aries very much in strength and quality in the different receivers.

My apparatus removes the difficulties before named, and renders the acid more pure and uniform in quality, and 'cheapens its production by saving .labor and time.

In the drawingsa a are the receivers or carboys of condensation, of any desired size or shape.

b b are the tubes through which the acid passes from the cylinders or retorts as usual'. p

The tubes b b are to becemented or otherwise niade tight in the necks c c. l

My special feature of improvement consists in providing holes near the bottom of eachcarboy, and connecting one, cai-boy of condensation with another, so

that the acid can be drawn ctt to nearly auniformlcvelv Y in each group of receivers without disturbing the carboys or receivers themselves.

I accomplish this object hy the use of perforated India-rubber or similar stoppers d d, through which a pipe or tube of glass, or similar material, e, passes, and these are united in pairs by the flexible-rubber tubes f,- and in order to provide for drawing of the acid, I form one or more of the carboys of condensation in each range with a hole, into which the stopper g with a glass pipe is introduced; and h is an India-rubber tube that allows for running the acid into the usual carboys, and when its end is raised above the level of the acid in the receiver, the flow or delivery is stopped.

In Athis apparatus the stoppers do not have to be renloved, the manufacture can be nearly continuons, the purity of the acid is maintained, and the quality rcndered more uniform than heretofore.

By connecting three or more carboys together, so as to form groups in the range, the acid from any one group will be of nearly uniform strength and quality when drawn from the delivery-pipe h of the group, as the acid will be delivered ysimultaneously from all the carboys that are connected together to form a group.

The receivers farthest from the generating-cylinders are to receive water, vand the same can be retained or allowed to run back, by providing alonger pipe, f, and leading it up and down, as seen by dotted lines, fig. l, or bring it down horizontally.v

v In my apparatus, the acid can be removedhot or warm, to save time, and by the connections the strength of the acid. can be varied as desired.

What Iclaim, and desire to secure by Letters Patent, is

l. The carboys of condensation for acids, made substantially in the manner and for the purposes set forth.

2. The tubes and stoppers applied to and combined .with the said carboys of condensation, in the manner and-for the pulposes set forth.

In witness whereof, I have hereunto set my signature, this 20th day of January, 1869.

A. BAUMGARTEN.

Witnesses:

CEAS. H. SMITH, GEO. T. PINCKNEY. 

